Hudson is a discontinued continuous integration (CI) tool written in Java, which runs in a servlet container such as Apache Tomcat or the GlassFish application server.

[7] When Oracle bought Sun, it declared its intention to trademark the Hudson name, and development began on a commercial version.

It was decided by the majority of the development community, including Kawaguchi, to continue the project under the name Jenkins in early 2011.

Eventually Oracle donated the remaining Hudson project assets to the Eclipse Foundation at the end of 2012.

In November 2010, an issue arose in the Hudson community with respect to the infrastructure used, which grew to encompass questions over Oracle's stewardship and perceived control of the project.

"When we were talking with Oracle to find a middle ground, they made it very clear that they have no intention of giving up the trademark control.